<?php /* *功能:对URL进行编码 *参数说明:$web_url 网站URL，不包含"http://" */ function HashURL($url) {       $SEED = "Mining PageRank is AGAINST GOOGLE'S TERMS OF SERVICE. Yes, I'm talking to you, scammer.";     $Result = 0x01020345;     for ($i=0; $i<strlen($url); $i++)     {         $Result ^= ord($SEED{$i%87}) ^ ord($url{$i});         $Result = (($Result >> 23) & 0x1FF) | $Result << 9;     }     return sprintf("8%x", $Result); } /* *功能:根据google提供的pr查询接口获取pagerank *参数说明:$domain 网站域名，不包含"http://" */ function pagerank($domain) {        $StartURL = "http://toolbarqueries.google.com/tbr?client=navclient-auto&features=Rank:&q=info:";     $GoogleURL = $StartURL.$domain. '&ch='.HashURL($domain);     echo $GoogleURL.'<br>';     $fcontents = file_get_contents("$GoogleURL");     $pagerank = substr($fcontents,9);     if (!$pagerank) return "0";else return $pagerank; } echo pagerank("phpddt.com"); ?>